Cas 91157-38-9,1,6-Naphthyridin-2(1H)-one, 3,4,5,6,7,8-hexahydro-1-phenyl-6-(2-phenylethyl)-

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Check Digit Verification of cas no

The CAS Registry Mumber 91157-38-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,5 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91157-38:
(7*9)+(6*1)+(5*1)+(4*5)+(3*7)+(2*3)+(1*8)=129
129 % 10 = 9
So 91157-38-9 is a valid CAS Registry Number.

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91157-38-9Relevant academic research and scientific papers

Conformationally Restrained Fentanyl Analogues. 2. Synthesis and Analgetic Evaluation of Perhydro-1,6-naphthyridin-2-ones

Borne, Ronald F.,Fifer, E. Kim,Waters, I.W.

, p. 1271 - 1275 (2007/10/02)

Conformational flexibility of the N-acyl portion of fentanyl-type analgetics was restricted through the synthesis of novel perhydro-1,6-naphthyridin-2-one derivatives.Neither the cis-fused derivative (5a), the trans-fused derivative (5b), nor the enamide

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